<template>
  <div>
    <!-- 图片上传组件辅助，组件内添加v-show=“false”属性，把该组件隐藏起来。-->
    <el-upload class="avatar-uploader" :action="uploadUrl" name="img" :headers="imgHeaders" :show-file-list="false" :on-success="uploadSuccess" :before-upload="beforeUpload">
    </el-upload>


    <!-- Two-way Data-Binding -->
    <quill-editor class="editor"
                  ref="myQuillEditor"
                  v-model="content"
                  :options="editorOption"
                  @blur="onEditorBlur($event)"
                  @focus="onEditorFocus($event)"
                  @ready="onEditorReady($event)"
    />

  </div>


</template>

<script>


import { quillEditor } from "vue-quill-editor";

import 'quill/dist/quill.core.css';
import 'quill/dist/quill.snow.css';
import 'quill/dist/quill.bubble.css';
const toolbarOptions = [
  ['bold', 'italic', 'underline', 'strike'],        // 加粗，斜体，下划线，删除线
  ['blockquote', 'code-block'],                      //引用，代码块
  [{ 'header': 1 }, { 'header': 2 }],               // 几级标题
  [{ 'list': 'ordered' }, { 'list': 'bullet' }],     // 有序列表，无序列表
  [{ 'script': 'sub' }, { 'script': 'super' }],      // 下角标，上角标
  [{ 'indent': '-1' }, { 'indent': '+1' }],          // 缩进
  [{ 'direction': 'rtl' }],                         // 文字输入方向
  [{ 'size': ['small', false, 'large', 'huge'] }],  // 字体大小
  [{ 'header': [1, 2, 3, 4, 5, 6, false] }],// 标题
  [{ 'color': [] }, { 'background': [] }],          // 颜色选择
  [{ 'font': ['SimSun', 'SimHei', 'Microsoft-YaHei', 'KaiTi', 'FangSong', 'Arial'] }],// 字体
  [{ 'align': [] }], // 居中
  ['clean'],                                       // 清除样式,
  ['link', 'image'],  // 上传图片、上传视频
]
export default {
  components: {
    quillEditor
  },
  name: "Editor",
  data(){
    return{
// 富文本编辑器默认内容
      content: '',
      //富文本编辑器配置
      editorOption: {
        placeholder: '请在这里输入',
        // theme: 'snow', //主题 snow/bubble
        modules: {
          history: {
            delay: 1000,
            maxStack: 50,
            userOnly: false
          },
          toolbar: {
            container: toolbarOptions,
            handlers: {
              image: function (value) {
                if (value) {
                  // 调用element的图片上传组件
                  document.querySelector('.avatar-uploader input').click()
                } else {
                  this.quill.format('image', false)
                }
              }
            }
          }
        }
      },

      uploadUrl: '/api/upload/addImg'
    }
  },
  computed:{
    imgHeaders(){
      return{
        'Authorization': sessionStorage.getItem("systemToken")
      }
    }
  },
  methods:{
    beforeUpload (file) { },
    uploadSuccess (res) {
      // 获取富文本组件实例
      let quill = this.$refs.myQuillEditor.quill
      // 如果上传成功
      console.log(res)
      if (res.status === 0 && res.imgUrl) {
        // 获取光标所在位置
        let length = quill.getSelection().index;
        // 插入图片，res为服务器返回的图片链接地址
        // TODO:可能要改
        quill.insertEmbed(length, 'image', "http://localhost:1453/" + res.imgUrl)
        // 调整光标到最后
        quill.setSelection(length + 1)
      } else {
        // 提示信息，需引入Message
        this.$message.error('图片插入失败！')
      }
    },
    //失去焦点事件
    onEditorBlur(quill) {
      console.log('editor blur!', quill)
    },
    //获得焦点事件
    onEditorFocus(quill) {
      console.log('editor focus!', quill)
    },
    // 准备富文本编辑器
    onEditorReady(quill) {
      console.log('editor ready!', quill)
    },
    //内容改变事件
    onEditorChange({ quill, html, text }) {
      console.log('editor change!', quill, html, text)
      this.content = html
    },

  }
}
</script>

<style lang="scss">
.editor {
  line-height: normal !important;
  height: 500px;
  margin-bottom: 40px;
}
.ql-snow .ql-tooltip[data-mode="link"]::before {
  content: "请输入链接地址:";
}
.ql-snow .ql-tooltip.ql-editing a.ql-action::after {
  border-right: 0px;
  content: "保存";
  padding-right: 0px;
}

.ql-snow .ql-tooltip[data-mode="video"]::before {
  content: "请输入视频地址:";
}

.ql-snow .ql-picker.ql-size .ql-picker-label::before,
.ql-snow .ql-picker.ql-size .ql-picker-item::before {
  content: "14px";
}
.ql-snow .ql-picker.ql-size .ql-picker-label[data-value="small"]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value="small"]::before {
  content: "10px";
}
.ql-snow .ql-picker.ql-size .ql-picker-label[data-value="large"]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value="large"]::before {
  content: "18px";
}
.ql-snow .ql-picker.ql-size .ql-picker-label[data-value="huge"]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value="huge"]::before {
  content: "32px";
}

.ql-snow .ql-picker.ql-header .ql-picker-label::before,
.ql-snow .ql-picker.ql-header .ql-picker-item::before {
  content: "文本";
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="1"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="1"]::before {
  content: "标题1";
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="2"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="2"]::before {
  content: "标题2";
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="3"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="3"]::before {
  content: "标题3";
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="4"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="4"]::before {
  content: "标题4";
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="5"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="5"]::before {
  content: "标题5";
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="6"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="6"]::before {
  content: "标题6";
}

.ql-snow .ql-picker.ql-font .ql-picker-label::before,
.ql-snow .ql-picker.ql-font .ql-picker-item::before {
  content: "标准字体";
}
.ql-snow .ql-picker.ql-font .ql-picker-label[data-value="serif"]::before,
.ql-snow .ql-picker.ql-font .ql-picker-item[data-value="serif"]::before {
  content: "衬线字体";
}
.ql-snow .ql-picker.ql-font .ql-picker-label[data-value="monospace"]::before,
.ql-snow .ql-picker.ql-font .ql-picker-item[data-value="monospace"]::before {
  content: "等宽字体";
}

</style>